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7.3.2 ECG Electrodes Placement
Electrode Placement
The ECG leads and their corresponding locaons are as follows:
Electrode connecon 1
(IEC Standard)
Electrode connecon 2
(AHA Standard)
Electrode posion on body surface
Color code
Label on
lead wire
connecon
Color code
Label on
lead wire
connecon
Red R White RA
Right Arm: The intersecon between the centerline
of the right clavicle and Rib 2
Yellow L Black LA
Le Arm: The intersecon between the centerline
of the le clavicle and Rib 2
Green F Red LL Le Leg: Le part of the upper abdomen
Black N/RF Green RL Right Leg: Right part of the upper abdomen
White C Brown V Any of the following locaon (C1-C6 or V1-V6) on chest
White/red C1 Brown V1 4
th
Intercostal (IC) space at right border of sternum
White/yellow C2 Brown/yellow V2 4
th
IC space at le border of sternum
White/green C3 Brown/green V3 Midway between V2 and V4
White/brown
(blue)
C4 Brown/blue V4 5
th
IC space on le midclavicular line
White/black C5 Brown/red V5 Le anterior axillary line at the horizontal level of V4
White/purple C6 Brown/purple V6 Le midaxillary line at the horizontal level of V4
7.4 Understanding the ECG Display
Your display may be congured to look slightly dierent.
ECG waveform